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Título : Shared and contrasting associations in the dynamic nano- and picoplankton communities of two close but contrasting sites from the Bay of Biscay
Autor : Garate, Leire; Alonso-Saez, Laura; Revilla, Marta; Logares, Ramiro; Lanzen, Anders
Citación : ENVIRONMENTAL MICROBIOLOGY, 2022, 24, 6052-6070
Resumen : Pico- and nanoplankton are key players in the marine ecosystems due to their implication in the biogeochemical cycles, nutrient recycling and the pelagic food webs. However, the specific dynamics and niches of most bacterial, archaeal and eukaryotic plankton remain unknown, as well as the interactions between them. Better characterization of these is critical for understanding and predicting ecosystem functioning under anthropogenic pressures. We used environmental DNA metabarcoding across a 6-year time series to explore the structure and seasonality of pico- and nanoplankton communities in two sites of the Bay of Biscay, one coastal and one offshore, and construct association networks to reveal potential keystone and connector taxa. Temporal trends in alpha diversity were similar between the two sites, and concurrent communities more similar than within the same site at different times. However, we found differences between the network topologies of the two sites, with both shared and site-specific keystones and connectors. For example, Micromonas, with lower abundance in the offshore site is a keystone here, indicating a stronger effect of associations such as resource competition. This study provides an example of how time series and association network analysis can reveal how similar communities may function differently despite being geographically close.
Palabras clave : MICROBIAL COMMUNITY; MIXOTROPHIC PROTISTS; ARCHAEAL ASSEMBLAGES; TIME-SERIES; MARINE; BACTERIA; PHYTOPLANKTON; BACTERIOPLANKTON; ECOLOGY; SURFACE
Fecha de publicación : 2022
Editorial : WILEY
Tipo de documento: Article
Idioma: 
DOI: 10.1111/1462-2920.16153
URI : http://dspace.azti.es/handle/24689/1555
ISSN : 1462-2912
E-ISSN: 1462-2920
Patrocinador: Ministerio de Ciencia e Innovacion
Ikerbasque, Basque Foundation for Science
Basque Water Agency
Spanish Government
Aparece en las tipos de publicación: Artículos científicos



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